Hiking by oneself can be fun and good for health.It may also be good for ________ building.
| A．respect | B．friendship |
| C．reputation | D．character |
You have no idea ______ for her safety.
| A．how anxious I have been | B．so anxious I have been |
| C．how I have been anxious | D．I have been so anxious |
We were swimming in the lake ______ suddenly the storm started.
| A．until | B．while | C．when | D．before |
There is clear evidence _______ the most difficult feeling of all to interpret is bodily pain.
A. what B. that C. if C. how
—My brother can only speak a few words of French.
—? He once worked in Paris for nearly a year, right?
| A．For what | B．How come | C．Why not | D．So what |
The society was set up toendangered animals from dying out.
| A．deserve | B．preserve | C．observe | D．reserve |